Molecular characterization of a novel adult diarrhoea rotavirus strain J19 isolated in China and its significance for the evolution and origin of group B rotaviruses
文献类型: 外文期刊
第一作者: Ji, Shaozhong
作者: Ji, Shaozhong;Tang, Qing;Cui, Xiaoying;Yan, Hongyang;Kan, Biao;Gao, Shouyi;Jiang, Shengjun
作者机构:
关键词: GROUP-C ROTAVIRUS;INNER CAPSID PROTEIN;SEQUENCE-ANALYSIS;NUCLEOTIDE-SEQUENCE;GENETIC-ANALYSIS;GENOME SEGMENTS;DSRNA VIRUSES;CDNA CLONING;AMPLIFICATION;BANGLADESH
期刊名称:JOURNAL OF GENERAL VIROLOGY ( 影响因子:3.891; 五年影响因子:3.719 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The complete genome of a novel adult diarrhoea rotavirus strain J19 was cloned and sequenced using an improved single-primer sequence-independent method, The complete genome is 17 961 bp and is AU-rich (66.49%). Northern blot analysis and genomic sequence analysis indicated that segments 1-11 encode 11 viral proteins, respectively. Protein alignments with the corresponding proteins of J19 with B219, and groups A, B and C rotaviruses, produced higher per cent sequence identities to B219. Among groups A, B and C rotaviruses, 10 proteins from group B rotaviruses exhibited slightly higher amino acid sequence identity to the Jig proteins, but proteins of J19 showed low amino acid sequence identity with groups A and C rotaviruses. Construction of unrooted phylogenetic trees using a set of known proteins and representatives of three known rotavirus groups revealed that six structural proteins were positioned close to B219 and the basal nodes of groups A, B and C lineages, although with a preferred association with group B lineages. Phylogenetic analysis of the five non-structural proteins showed a similar trend. The results of the serological analysis, protein sequence analysis and phylogenetic analysis suggested that J19 would be a novel rotavirus; strain with great significance to the evolution and origin of group B rotaviruses.
分类号: R37
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